- Replaces the `cancelAnimationFrame` pattern with a boolean ticking flag to reduce function allocation and RAF overhead on high-frequency mousemove events.
- Uses closure variables for coordinates to ensure the latest position is used in the animation frame.
- Improves performance of the custom cursor on high-refresh-rate input devices.
Added strict security headers to `firebase.json` for Firebase Hosting.
Headers included:
- X-Content-Type-Options: nosniff
- X-Frame-Options: DENY
- Referrer-Policy: strict-origin-when-cross-origin
- Content-Security-Policy: Includes directives for 'self', Google Fonts, EmailJS, and disallows object/frame embedding.
Also initialized `.jules/sentinel.md` with the first security learning.
Added `sanitizeInput` utility to escape HTML characters.
Updated `Contact.tsx` to sanitize inputs before sending via `emailjs`.
Added max length validation for Name (100), Subject (200), and Message (5000).
Updated tests to cover sanitization and validation logic, including adding `cleanup()` to prevent test leakage.
